netdev - [PATCH RFC 3/4] net: phy: swphy: bind swphy to genphy driver at probe time

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Date:   Tue, 13 Aug 2019 23:26:01 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Marek Behun <marek.behun@....cz>,
        David Miller <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH RFC 3/4] net: phy: swphy: bind swphy to genphy driver at probe
 time

Let a swphy bind to the genphy driver at probe time. This provides
automatic feature detection even if the swphy never gets attached to a
net_device. So far the genphy driver binds to a PHY as fallback only
once the PHY is attached to a net_device.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/phy/swphy.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/swphy.c b/drivers/net/phy/swphy.c
index 53c214a22..7ac5054fa 100644
--- a/drivers/net/phy/swphy.c
+++ b/drivers/net/phy/swphy.c
@@ -151,8 +151,9 @@ int swphy_read_reg(int reg, const struct fixed_phy_status *state)
 	case MII_BMSR:
 		return bmsr;
 	case MII_PHYSID1:
+		return GENPHY_ID_HIGH;
 	case MII_PHYSID2:
-		return 0;
+		return GENPHY_ID_LOW;
 	case MII_LPA:
 		return lpa;
 	case MII_STAT1000:
-- 
2.22.0